Home / 2,144,619.35-3,215,947.83-1,280,446.46

Finding the Fourth Proportional to 2,144,619.35, 3,215,947.83 and 1,280,446.46

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Solution

The fourth proportional to 2,144,619.35, 3,215,947.83 and 1,280,446.46 is: 1,920,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144,619.35 : 3,215,947.83 = 1,280,446.46 : x
  2. Step 2: Convert to fraction form
    2,144,619.35/3,215,947.83 = 1,280,446.46/x
  3. Step 3: Cross multiply
    2,144,619.35x = 3,215,947.83 × 1,280,446.46
  4. Step 4: Simplify right side
    2,144,619.35x = 4,117,849,023,736.28
  5. Step 5: Solve for x
    x = 4,117,849,023,736.28/2,144,619.35
  6. Step 6: Final answer
    x = 1,920,083.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.